iPhone physics engine for fluid/water simulation?

Question

I'm about to start developing a game that's main feature revolves around 2D water simulation. I have thought about starting with Box2D and designing water in that engine, but I'm not sure if it would be efficient, and I don't have any experience with Box2D.

It would be great if there was an engine with good fluid simulation built in. If not, where should I start? I have been searching around for a while and still don't really have a good place to begin.

The water is only going to take up at most 10% of the screen at a time, and my goal is 40 FPS on the 3GS and 45+ on the iPhone 4. Just rough numbers.

I'm also very interested in that subject. Have you found any solution ? — zov, Oct 25 '11 at 08:24
Not yet. There is hardly anything good for this anywhere as far as I've seen. — Gus, Oct 26 '11 at 03:24

score 22 · Accepted Answer · answered Nov 09 '11 at 19:45

actually you have to trick to make something looking smooth. Disney's "Where is my water?" app, is awesome for this, they make a first render of large balls and then create a water mask which serve as a filter to make this appears like a real stream. This will visually be much better even if physically it is more approximative than simulating hundreds of thousands of drops.

Take a look on this example to see what I mean

I never pushed Box2D to its limits but in my opinion it should be adapted enough for this usage.

Really nice solution. When the fluid is not moving though it can look strange. — iceydee, Nov 11 '11 at 09:05

iPhone physics engine for fluid/water simulation?

1 Answers1